Threaded bar construction

Details Threaded bar construction Threaded bar construction

1993-08-16

1995-08-22

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

411417, E21D 2102

Patent

active

054433312

ABSTRACT:
A threaded bar construction and bar stock and nut combination useful in the mining industry and also in the concrete industry; the bar stock is provided with raised thread segments which appear only on one side of the elongate bar employed, so as to provide for marked reduction in manufacturing costs without detracting from the pull strength or tensioning parameters desired.

REFERENCES:
patent: 1048590 (1912-12-01), Russell
patent: 1440613 (1923-01-01), Mathias
patent: 1987474 (1935-01-01), Grant
patent: 4630971 (1986-12-01), Herbst et al.
patent: 5234291 (1993-08-01), Swemmer
ASTM Publication F 432-83, Rouf and Rock Bolts and Accessories.

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